James park



(No Model.)

J. PARK.

FEED WATER HEATER AND EEEEEE. No. 275,342. Patented Apr. 8, 1883.

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UNITED STATES PATENT OFFICE.

JAMES PARK, or TROY, NEW YORK, ASSIGNOR TO THEODORE HASLEHURST, or SAME PLACE.

FEED-WATER HEATER AND FEEDER.

SPECIFICATION forming part of Letters Patent No. 275,342, dated April 3, 1883.

Application filed September 24, 1880. (No model.)

To all whom it may concern:

Be it known that 1, JAMES PARK, of Troy, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Feed Water Heaters and Feeders, of which the following is a speeification.

My invention relates to an apparatus for heating water and ejecting it from the heater to into the boiler by a current of live steam and it consists of a close vessel provided with an outer chamber, into which the feed-water is first admitted for the purpose of receiving its initial heat, and an inner chamber that is constantly filled with live steam for imparting heat to the water that surrounds said chamber. The innermost end of the latter chamber,

being closed and arranged so as to leave a wator-space between it and the head of the outer 2o chamber, is provided with a nozzle that is opened and closed by a valve operated from the outside of the device, whereby a current of live steam can beinjected into the feed-pipe of the boiler in such manner that the water he- 2 ,tween the inner and. outer chambers will be g drawn into the feed-pipe, and by the'impetus imparted to it by the current of steam will be forced intothe boiler, and at the same time 55 the heat of the steam will be absorbed by the 6 water, so as to cause it to enter the boiler in a -highly-l1eated condition. The casing of the =outer chamber may, when preferred, be made double, and the intervening space can then be adapted to receive the exhaust-steam from an 3 5 engine,-thereby utilizing the waste steam for imparting additional heat to the water and preventing the radiation of heat therefrom.

The accompanying drawing, which forms a part of this specification, represents a lon- 40 gitudinal section of my improved heater and feeder.

The water-chamber A is formed by the easing a and the heads a and a and a supplypipe, B, is connected to the casing a for the 5, purpose of supplying water to said chamber.

The steam-chamber O is formed by the easing 0, which is secured at one end to the head a its opposite end being closed up. Said steam-chamber is fixed within the chamber A in such manner that a clear space is left between the two casings, and between the closed end of the steam-chamber and head a, for a free circulation of water around the entire casing of the chamber 0. The closed end of said casing is provided with a tapering nozzle, D, which extends beyond the inner face of the head a and enters the eduction-pipe E, by which the feedwater is conveyed into the boiler. The arrangement of the nozzle D and pipe E is such that an annular space is left between the two for the passage of the water from the chamber A into the pipe E. The end of the opening through the nozzle D, at the inside of the chamber 0, is provided with a valveseat for receiving the valve F, whose stem ex- 6 tends through a stuffing-box, G, in the head a and is provided with a screw-thread, f, and with a hand-wheel, H, for opening and closing the valve. A steam-pipe, I, for supplying the chamber 0 with live steam from the boiler is 7: fixed in the head a The operation of my invention is as follows: The pipe B being connected to the water-supply, the pipe E to the check-valve, and the pipe I to the steam-chamber of the boiler, the steam flows into the chamber 0 and causes the water in the chamber to become highly heated. On moving back the valve F to open the passage through the nozzle D a current of steam issues forth from said nozzle, and by its impetus causes the water in the pipe to move forward with sufficient force to raise the checkvalve and pass into the boiler. The pipe E receives a steady supply from the chamber A to replace the water that is forced into the boiler, 8 and the water by absorbing the heat from the current of steam that forces it forward enters the boiler in a highly-heated condition. This feeding operation will continue as long as the valve F is clear from its seat. On closing said '90 valve the water in the chamber A remains at rest and becomes highly charged with heat from the steam in the chamber 0.

When preferred the outer casing of the device may be constructed with double walls by 5 placing the shell J outside of the casing (a so as to form the annular chamber K for receiving the exhaust-steam from an engine, and for that purpose the pipes L and M are connected to the shell J-the first to convey the exhaust- [CO steam into the chamber K and the other to E, as herein described, the valve F, and steam permit its escape from said chamber. By this pipe I, all arranged as herein specified. arrangement a steam-jacket is formed around 2. The combination, with the chamber A and 15 the chamber A to prevent a loss of heat by supply-pipe B, ofthe chamber 0, provided with 5 radiation and to impart additional heat to the the nozzle D, valve F, and steam-pipe I, and

water in said chamber. 7 the chamber K, provided with the pipes L and I claim as my invention- M, all arranged to operate substantially as 1. In a combined heater and feeder, the comherein specified. bination, with the water-chamber A, provided JAMES PARK. 10 with the supply-pipe B and eduction-pipe E, Witnesses of the steam-chamber 0, provided with the noz- JOHN L. RUSSELL, zle D arranged in relation to the eduction-pipe D. H. HUMPHREY. 

